
\begin{center}
\begin{longtable}[htb]{l D{.}{.}{5.5} D{.}{.}{5.4} D{.}{.}{5.5}}
\caption{Robustness check for hypothesis: 3: Alternative STC measures}
\label{TableD3}\\
\hline
 & \multicolumn{1}{c}{Net STC} & \multicolumn{1}{c}{Sym. STC} & \multicolumn{1}{c}{Add. STC} \\
\hline
\endfirsthead
\hline
 & \multicolumn{1}{c}{Net STC} & \multicolumn{1}{c}{Sym. STC} & \multicolumn{1}{c}{Add. STC} \\
\hline
\endhead
\hline
\endfoot
\hline
\multicolumn{4}{l}{\scriptsize{\parbox{.8\linewidth}{$^{***}p<0.01$; $^{**}p<0.05$; $^{*}p<0.1$. Entries are unstandardised coefficients from a linear mixed-effects model with random intercepts at the country- and party-level. Standard errors in brackets.}}}\\
\endlastfoot
$\Delta$ STC Stable                   & 1.76        & 0.13       & -1.59      \\
                                      & (1.47)      & (1.47)     & (1.58)     \\
$\Delta$ STC Increase                 & 0.89        & -1.81      & -2.64^{**} \\
                                      & (1.32)      & (1.33)     & (1.33)     \\
Ideology: Left-wing                   & 1.38        & -0.15      & -2.05      \\
                                      & (2.88)      & (2.89)     & (2.90)     \\
Ideology: Center                      & 0.30        & -1.07      & -1.48      \\
                                      & (3.40)      & (3.39)     & (3.41)     \\
Ideology: Right-wing                  & 3.93        & 1.89       & 0.54       \\
                                      & (3.26)      & (3.28)     & (3.29)     \\
Ideology: Far-right                   & 2.74        & 1.85       & 1.03       \\
                                      & (2.85)      & (2.84)     & (2.87)     \\
$\Delta$ STC Stable $\times$ LW       & -1.09       & 0.49       & 3.19^{*}   \\
                                      & (1.81)      & (1.81)     & (1.91)     \\
$\Delta$ STC Increase $\times$ LW     & 1.05        & 3.64^{**}  & 5.70^{***} \\
                                      & (1.60)      & (1.61)     & (1.61)     \\
$\Delta$ STC Stable $\times$ Center   & 3.78^{*}    & 4.84^{**}  & 6.28^{***} \\
                                      & (1.98)      & (1.96)     & (2.14)     \\
$\Delta$ STC Increase $\times$ Center & 1.40        & 4.17^{**}  & 4.26^{**}  \\
                                      & (1.86)      & (1.85)     & (1.82)     \\
$\Delta$ STC Stable $\times$ RW       & -1.15       & 1.31       & 2.82       \\
                                      & (2.01)      & (2.03)     & (2.10)     \\
$\Delta$ STC Increase $\times$ RW     & -0.58       & 2.47       & 4.21^{**}  \\
                                      & (1.81)      & (1.84)     & (1.83)     \\
$\Delta$ STC Stable $\times$ FR       & -0.54       & -0.19      & 0.94       \\
                                      & (1.82)      & (1.79)     & (1.91)     \\
$\Delta$ STC Increase $\times$ FR     & -0.69       & 1.08       & 2.00       \\
                                      & (1.60)      & (1.60)     & (1.63)     \\
(Intercept)                           & -7.62^{***} & -5.99^{**} & -4.99^{*}  \\
                                      & (2.56)      & (2.57)     & (2.59)     \\
\hline
AIC                                   & 17337.55    & 17339.79   & 17334.91   \\
BIC                                   & 17441.17    & 17443.41   & 17438.54   \\
Log Likelihood                        & -8650.77    & -8651.89   & -8649.46   \\
N                                     & 2338        & 2338       & 2338       \\
Group: Parties                        & 70          & 70         & 70         \\
Group: Country                        & 28          & 28         & 28         \\
Var. Party                            & 27.53       & 27.25      & 27.11      \\
Var. Country                          & 21.15       & 21.91      & 22.24      \\
Var. Residuals                        & 90.77       & 90.86      & 90.68      \\
\end{longtable}
\end{center}
